empty | /function/mod.ts | denops_std@v4.1.3

📚 Standard module for denops.vim

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function empty

import { empty } from "https://deno.land/x/denops_std@v4.1.3/function/mod.ts";

empty(denops: Denops, expr: unknown): Promise<unknown>

Return the Number 1 if {expr} is empty, zero otherwise.

A |List| or |Dictionary| is empty when it does not have any items.
A |String| is empty when its length is zero.
A |Number| and |Float| are empty when their value is zero.
|v:false|, |v:none| and |v:null| are empty, |v:true| is not.
A |Job| is empty when it failed to start.
A |Channel| is empty when it is closed.
A |Blob| is empty when its length is zero. For a long |List| this is much faster than comparing the length with zero. Can also be used as a |method|: mylist->empty()

Return the Number 1 if {expr} is empty, zero otherwise.

A |List| or |Dictionary| is empty when it does not have any items.
A |String| is empty when its length is zero.
A |Number| and |Float| are empty when their value is zero.
|v:false|, |v:none| and |v:null| are empty, |v:true| is not.
A |Job| is empty when it failed to start.
A |Channel| is empty when it is closed.
A |Blob| is empty when its length is zero. For a long |List| this is much faster than comparing the length with zero. Can also be used as a |method|: mylist->empty()

Parameters

expr: unknown

Promise<unknown>